The ECM detected one of the following conditions:
- The actual pressure and the desired pressure are substantially different.
- The "Injection Actuation Pressure Control Valve Driver" was at the maximum output or the minimum output for a longer time then needed.
Note: The diagnostic code indicates a mechanical problem. The ECM and the electronic control system are operating correctly.
System Response:
Engine Response The engine may be low on power and the idle may be unstable. The engine may be difficult to start at normal operating temperatures, but the engine may start easily when the engine is cold.
Note: The problem may only exist at operating temperature. Air may be trapped in the injection actuation system if the system has been serviced recently. Start the engine and run the engine at 1500 rpm for a few minutes in order to remove the trapped air.
Test Step 1. Perform the following diagnostic procedure: Injection Actuation Pressure - Test
Results:
- OK - STOP